BMW Z4 M40i vs Porsche Boxster GTS vs Audi TTS: The Ultimate Roadster Drag Race! Acceleration & Sound by turboandstance - June 9, 2019November 3, 2026 In this exciting showdown from Carwow, Matt Watson pits three of the most popular German roadsters against each other in a series of performance trials. Matt is driving the BMW Z4 M40i, powered by a 3.0-litre turbocharged straight-six engine producing 340 horsepower and 500 Nm of torque, paired with an 8-speed automatic gearbox and rear-wheel drive. Lined up next to the BMW is the Porsche Boxster GTS, driven by Yanni from Yiannimize. The Boxster features a 2.5-litre 4-cylinder turbocharged engine pushing out 365 brake horsepower, sending power to the rear wheels. Completing the trio is the Audi TTS Roadster, which boasts a 2.0-litre 4-cylinder engine with 306 horsepower and 400 Nm of torque, benefiting from Audi’s legendary Quattro four-wheel-drive system. The action kicks off with a unique convertible roof race, followed by a standing quarter-mile drag race. Right from the starting line, tension rises as accusations of a false start are thrown around, forcing a slow-motion replay to check the drivers’ reaction times. But the battle doesn’t stop there. The cars also face off in a 50 MPH rolling race in third gear to test their mid-range punch, and wrap up with a high-stakes 70 MPH emergency brake test. The final test ends with a massive twist and a double disqualification, leaving the drivers arguing over who actually played by the rules. Watch the full video to see which German sports car takes the ultimate crown! For more content like this one follow us also on Facebook, Pinterest or Instagram!